Environmental bias forces parasitism in Tierra

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review


Tierra is an iconic ALife system. It has three innovative features: self-optimisation, parasitism, and an uncrashable execution environment. We have identified four sources of bias in the evolutionary dynamics of Tierra. We have run two sets of simulations: one with the original configuration of Tierra 6.02, and one with three of the biases removed. We find that the innovations observed in the original Tierra are preserved, and the debiased configuration is more amenable for future experiments with open-ended evolution.
Original languageEnglish
Title of host publicationEuropean Conference on Artificial Life 2015
PublisherMIT Press
ISBN (Print)9780262330275
Publication statusPublished - 2015

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